Hydrocarbon inverted-mantle lamp.



O. J. SEEHAUSEN.

HYDROCARBON INVERTED MANTLE LAMP. fllmcuynolyv VFILED JULY z`1, 1908.

91 2, 185. Patented Feb. 9, 1909,

Snom/woz Wilmeoou atm,

so deslgnedand arranged as to ena will appear as thejdescriptionproceeds the OSCAR J. SEEHA'USEN, CHICAGO, ILLINOIS.

HYDRocARBoN INvERrED-MANTLE LAMP.

Specification of Letters Patent.

Patented Feb. `9, 1909.

Application led July 21, 1908. Serial No. 444,689.

To all whom it may concern:

' Be it known that L OseAR J. ySEEHAUSENl a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented new and useful Improvements in HydrocarbonInverted-Mantle Lamps, of which the following is a specification,

- This invention relates to a hydro carbon lamp of that type in whichthe mantle or mantles are inverted and which generates its' own vapor bythe heat of the llame.

The invention has for one of its objects to improve and simplify theconstruction vand operation of lamps of this character so as to overcomeobjectionable features of lamps as heretofore constructed, and so as 4tobe thoroughly reliable and efficient in use, and comparatively simpleand inexpensive to manufacture.

Another object of the invention is the provision of a lamp in which theva orizer is a le quick starting and efficient operation of the burner,and whereby the condensed vapor will drain away from the tip or nozzleat the end of the valporizer when the lamp i-s shut down .and co ect ata suitable point where vaporization can be quickly and easily effectedduring the initial heating` of the vaporizer for starting of the lamp.

Another object of the invention is the novel and compact arrangement,Within the canopy 0r casing, of the vaporizer, mixing tube into whichthe vaporizer discharges, and gas-conducting material that supports themantle of the burner of the lamp, the parts being so designed as topermit the easy and quick assembling thereof and at the same timeproducing a lamp of neat and attractive ap earance.

Tith these objects in .view and others, as

invention comprises the various novelfca tures of construction alndarrangement of" parts which will be more fully described ereinafter andset forth with particularity in the claims appended hereto.

In the accompanying drawing which illustrates one embodiment of theinvention, Figure l is a centrallvertical section of the lamp. Fig. 2lis a similar section taken at right angles to the section of Fig. 1.

Similar reference `characters are employed to designate correspondingparts throughout the several views.

'ing cap 9 and around Referring to the drawing, A designates the canopyor casing of the burner which is preferably made in an upper and lowersection l and 2 connected together by a telescoping joint at 3, and onthe upper section is a hood or cover 4, which is of sheet metal spun orpressed into any desired shape, provlded with screws 5 at its bottom forsupporting the globe that incloses the inverted mantle or mantles. l

- Arranged within the casing A is a gas-conducting tube Bin the generalform of a uestion mark having a vertical portion 6 w ich is formed intoa semicircular bend 7 at 'its u per .end for connection with the mixingc amber C, while the lower end is bent into a compound curve toterminate at 8 in a position coincident with the axis of the canopy inasingle mantle burner. On the lower end of the gas-conducting tube is agauze-carrythe mantle of the lamp. The mixing chamber C is a metalcasting or the like of appropriate form which has an internally-threadedolpening 10 at its top into which is threaded t e receiving end of thetube B,'and the bottom of the chamber has a threaded opening 11 intowhich is screwed a nozzle or jetdischarging device 12. The casing hasside openings 13 that are internally threaded for receiving the airinlet tubes 14 which have their outlet ends disposed in openings 15 inthe lower section of the'canopyor CaSngA, the inner ends of the tubebeing screwed into' the side openings of the mixing chamber. The outerends of the covered with gauze 16 secured in place-by crimping theedgcsof the tube as shown in Fig. 2 around the pcripheries of thcI gauzepieces, the gauze serving to prevent cross drafts through the fere withthe effectiveoperation. The air inlet tubes constitute means forsupporting the casing of the liquid chamber.

The vaporizer D wl'iich is arranged within the canopy, consists of asuitable length of L' tubing bent mto scmi-circu larsubstanti ally Ushaped form with one end screwed into the ndzzle 12and isconnected'thercby with` the bottom ofthe mixing tube, while the upperend of the other arm is connected with a needle valve easing 17. lowstem that passes out of the canop through an opening 18a and in which 1sthreaded a needle valve 19 'copera ting with the seat 20 to control orcut off the supply of this cap is suspended4 lamp which might `interiThis casing 17 has a hol-- air inlet tubes 14 are liquid fuel, the valvebeing manipulated by a lia-nd Wheel 21 disposed outside the canopy A.The vaporizer is located ,in close proxirnity to the mantle and .is inthe direct pathquickly heat and insure rapid generation oivapor and atthe same time preventk the draining of liquid fuel into the mixing;chant ber and gas-conducting tube. Leading into the upper end of thecanopy .is a uel-oon ducting pipe E which extends centi 'ily through thecover 4 and is bent laterally at 23 toward one side of the casi g, andthen vertically at 24 so as to screw into the upper end oi theneedlevalve casing l?, this pipe being filled with asbestos 25 or thelike for preventing pulsation of the lamp. The upper end of the pi e Eis connected with a suitable source oi liquid fuel supply under pressureand the liquid fuel feeds through the ipe, valve-casing 17, and into thevaporizer ln) Where it is. converted into vapor, and finally issuesthrough the nozzle or tip E2 into the mixing tube. The jet of vapor in;duces a supply of air into the chamber through the tube i4, and the`mixture thus resulting is conveyed to the mantle through theges-conducting pipe A.

From the foregoing description, taken in connection with theaccompanying drawing, the advantages .of the construction and of themethod of o eration Will be readily er arentto those s `lled in the artto which the invention appertains, and While I'liave vde scribedvtheprinciple ofo eration of the invention, together with t e devicewhiehnoW consider to be the bestfembodiment thereof, I" desir'e to have itunderstood'tha-t 4the device shovvn is merely illustrative, end thatsuch changes may be made when desired as are Within the scope of theclaims appended hereto.

Having thus described the invention, Whe-t I claim is l. A hydro-carbonlamp of the inverted mantle type comprising` a gas-conductingtubedisposed vertically and having its upper end bent back upon itself,a mixing tube havingr top and bottom and side openings, said top openingreceiving the upper end of the gas-conducting tube, e substantially U-shaped vaporizer having one arm connected with the bottom of the mixingchamber and the other erre latter, a li. te bottoni of -the with thevapori er, nected v/itn; the v discherfging liqu. ingits lower oasing, etrolling the il. from the last-noel oasiA g on j tube connchenil :Ltween the ing; under the che; l f oi the casing, oJ lower end of 'the rbottom opening o secured to 'the noz doubled bach on trolled liquid ineconduit Werdly through j ri/'ith the seid 3. A hydro-carb mantle typecom` of` two sections teiesco7 mixing; che, conducting pipe conn thechamber and curve tend betw en tl e cli o heving its louer end disc`chamber and coincident vri;y casing; for supporting .nieu consisting; abent tu' het' l l O ""Witnesses:

JEROME A. Annexe, y A. fyltnnorvisn.,

